Space Station V has a mass of 5.2 x 106 kg. For this problem assume the entire mass is in the "wheels" and don't consider the "spokes" or the central part. The diameter is 300 m. If two of SpaceX's second stage Falcon 9 rockets were attached and run at full thrust, 934 kN each, how long would they need to fire in s to reach the space station's period of 61 s from rest

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.

The mantle is made up of which structural zones?